package com.example.common.core.utils;

import cn.hutool.core.util.StrUtil;
import com.alibaba.ttl.TransmittableThreadLocal;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * @author 23050
 * @version 1.0
 * @description: 保证在拦截器请求时，将token解析出来的userid单独存起来
 * @date 2025/3/11 20:40
 */
public class ThreadLocalUtil {

    private static final TransmittableThreadLocal<Map<String, Object>> THREAD_LOCAL = new TransmittableThreadLocal<>();


    //设置userid
    public static void set(String key, Object value) {
        Map<String, Object> map = getLocalMap();
        map.put(key, value == null ? StrUtil.EMPTY : value);
    }



    //获取userId
    public static <T> T get(String key, Class<T> clazz) {
        Map<String, Object> map = getLocalMap();
        return (T) map.getOrDefault(key, null);
    }




    //初始化
    public static Map<String, Object> getLocalMap() {
        Map<String, Object> map = THREAD_LOCAL.get();
        if (map == null) {
            map = new ConcurrentHashMap<String, Object>();
            THREAD_LOCAL.set(map);
        }
        return map;
    }



    //清除ThreadLocal里面的内容
    public static void remove() {
        THREAD_LOCAL.remove();
    }
}
